Brush and handle for vacuum cleaners



Oct. 9', 1928. 1,686,934

V A. A. SERVA BRUSH AND HANDLE FOR VACUUM CLEANERS 2 Sheets-Sheet 1Filed Sept. 25. 1922 Oct. 9, 1928. 1,686,934

" A. A. SERVA BRUSH AND HANDLE FOR VACUUM CLEANERS Filed Sept. 23. 19222 Sheets-Sheet 2 Patented Oct. 9, 1928.

- nN1rEn STATES VPATENTJNOFFICE.

ADAM' A. SERV'A, OF CANTON, OHIO, ASSIGNOR TO THE .UNITED ELECTRICCOMPANY,

OF CANTON, OHIO, A CORPORATION OF OHIO.

BRUSH AND HANDLE FOR VACUUM CLEANERS.

Application filed September '23, 1922. Serial No. 590 113.

This invention relates to rotary brushes and handle bails for useuponvacuum cleaners or similar devices arranged to be moved to and froupon the floor by means of a pivoted handle, a rotary brush beingmounted in the cleaner for removing surface lit tor; and the sets of theimprovement are, toprovide an eiiicient means for rotating the brushfroma tractionwheel of the cleaner and-to provide simple means for pivotingthe handle bail upon the cleaner for holdin'g'the handle "bail inadjusted positions, and for attaching the handle to the handle bail.

The above and other objects may be at tained by constructing the deviceas illustrated in the accompanyingdrawings, in which Figure 1 is a sideelevation of a vacuum cleaner embodying the improvements;

Fig. 2, a section on the line 22, Fig. 1;

Fig. 8, a section through the bearing for the handle bail on theopposite side from that shown in Fig. 2; i

Fig. 4., a perspective view of the segmental plate which receives theclamping screw of the handle bail;

F 5, a perspective view of the spring plat-e which cooperates with theclamping bolt for holding the handle bail in the inoperative position.

*ig. 6, a section through the handle socket and the lower end of thehandle;

Fig. 7 a detail perspective view of the segmental plate and spring platepart of the segmental plate being broken away for the purpose ofillustration.

Similar numerals of reference indicate cor- A responding partsthroughout the several figures of the drawings.

For the purpose of illustrating the application of the improvements to aportable machine, a vacuum cleaner of any usual type is illustrated, andcomprises the fan casing 1, having the usual suction shoe or cleaningnozzle 2 at its forward end and supporting the motor casing 3, thedischarge neck 4; being located at the rear end of the casing andcommunicating with the usual dust collecting bag 5, a handle bail 6being pivotallyvconnected to opposite sides of the casing and providedwith the operating handle 7 for the purpose of manipulating the machineto and fro upon the floor.

Traction wheels 8 are provided on each side in of the ends at thecleaning nozzle so that the same can be tilted upward or downward bylowering or raising the rear end of the machine, a rear casto-r 9 beingemployed for limiting the downward-movement.

Each extremity of the handlebail is provided with a bearing "opening 10journaled upon a headed bushing 11, said bushing being mounted upon astud 12 having the preferably enlarged threaded portion 13 inserted intoa suitable threaded borev 14 in the adjacent side of the sweeper casing.

The head 15 of the bushing is grooved as at 16 to receive the cotter pin17 which is passed through the stud 12 and the outer extremity of saidstud is threaded as at 18 to receive the locking nut 19.

It will be seen that a very desirable construction of journal bearing isthus provided as the inner end of the bushing 11 impinges the adjacentside of the casing, the bail be- 7 ing journaled between the casing andthe head of the bushing preventing the same from being squeezed orpinched against the side of the casing by a tightening up or the nut 19.

.F or the purpose of holding the handle bail in different adjustedpositions a segmental plate20 is located over the stud 12 upon one sideof the casing and-connected to the casing as by the screws 21, saidplate having an arouate slot 22 which receives the clamping bolt carriedby the handle bail, a lock washer 2e and wing nut 25 being provided uponthe outer end of the clamping bolt for the purpose of clamping thehandle bail to the se mental plate. j

It has been found preferable to form the plate 20 of a hard metal and toplace a washer 26 between the head of the clampingbolt and the segmentalplate, this washer being formed of copper or other soft metal, in orderto tightly clamp the handle bail in any adjusted position. i

A spring plate 27 is mounted over the stud 12 between the plate 20 andthe adjacent side of the casing, one of the screws 21 being preferablylocated through said spring plate.

A tang 2 8 is formed upon said spring plate, havingthe rounded socket 29and the angular extremity 80, over which the head of the clamping boltmay ride to permit the same to seat itself in the socket 29 which'is solocated that the handle bail will be held in the inoperative positionsocket 31. is provided with a. grooved rib located through alongitudinal bore in the tapered loWer end of the handle 7 and heldtherein as by the transverse pin 35, the exextendlng through the tremityof said stem aperture 36 in the bottom of the socket and being threadedto receive the Wing nut 37, a lock Washer 38 being interposed betweenthe bottom of the socket an d the Wing nut.

It Will be obvious that a simple and efficient means is thus providedfor attaching the handle to the handle hail, the tapered end of thehandle being drawn down tightly into the socket as the Wing nut istightened on the threaded stem.

1. In combination with avacuum cleaner,

a threaded stud upon each side thereof a headed bushlng mounted uponeach stud, a handle bail ournaled upon the bushing and a nut upon thestud for tightening the bushing against the side Wall of the cleaner.

2. In combination With a vacuum cleaner a threaded stud upon each sidethereof, a headed bushing mounted upon each stud, a cotter pin locatedthrough the head of each bushing and through the stud, a handle bailjournaled upon the bushing and a nut upon a stud for tightening thebushing against the side Wall of the cleaner.

8. In combination With a vacuum cleaner, a stud fixed to each sidethereof and provided With a threaded outer portion, a bushing mountedupon each stud and having a head at its outer end, a handle bail havingits end portions journaled upon said bushing and a nut upon the threadedportion of each stud engaging the head of the bushing and clamping theinner end of the bushing against the side otthe cleaner.

ADAM A. SERVA.

